When veteran rappers 2 Chainz and Lil Wayne aren’t touring the world or putting out new songs, it makes sense to believe that they would do whatever it takes to make a splash in the hip-hopscene.

But judging from their most recent joint interview, in which they questioned one another on everything pertaining to the genre, it appears that the two MCs are equally enthusiastic about doing it in their spare time.

The two MCs talk about a range of topics, including their best verses and diss tracks, as part of their collaboration with Complex. The most fascinating aspect of the debate, though, was undoubtedly their in-depth examination of the best hip-hop mixtapes ever produced.

This topic was raised in response to the recent tweet that went viral online and was headlined “Mixtape Mount Rushmore.”

After that, the two MCs go into a furious argument about which mixtapes are the best of all time, ranking songs like Drake’s Trap or ʀie, Future and DJ Esco’s 56 Nights, and Wayne’s own The Dedication.

The fact that they both appear much more at ease than when they tricked each other when they were younger (does anyone else feel like they’re becoming older faster than they actually are?) offers a fascinating behind-the-scenes peek at two of the most intelligent people in the game right now. You can watch the complete interview here.